Video obtained by CNN appears to show Miami Dolphins football player Richie Incognito yelling the N-word and other expletives during an outing with teammates at a bar.
Incognito has been suspended from the Dolphins amid allegations he bullied teammate Jonathan Martin with racial slurs and threats of physical violence.
Many in the league, including former NFL coach Tony Done-gee, say Incognito had a reputation for being a problem player.
In college, Incognito was suspended or dismissed three times. And in 2009, the Rams released him after two personal foul penalties and an altercation with the coach.